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 Choose a reasonable plan

(1) The shorter the distance between the vacuum system outlet and the pump inlet, the better;

(2) The less the pipeline turns, the better;

(3) The inlet pipe should be higher than the inlet center line of the pump, and the outlet pipe should be prevented from causing larger resistance factors, such as climbing up the outlet pipe, right angle turning, etc;

(4) If the vacuum system is small, the diameter of the inlet and outlet pipe can be small, but not less than 70% of the product's import and export diameter, and the outlet diameter should be greater than or equal to the inlet pipe diameter;

(5) The bend of pipeline should be smooth transition;

(6) The inlet pipe of vacuum pump should be equipped with a valve to adjust the amount of water inflow, which has an impact on the vacuum degree. While adjusting the water inflow, the valve is controlled by observing the pointer of the vacuum gauge. The limit vacuum of sk-0.8 can reach -0.087. Under the working state, because the pipeline is not completely sealed, the vacuum degree of about-0.06 can meet the work requirements.

2. When installing or repairing the pipeline, avoid falling foreign matters.

3. The joint of the pipeline should be sealed with more gasket, and there should be no air leakage or water leakage.

4. A vacuum gauge is installed at the suction port of the vacuum equipment to control the change of vacuum.

5. When the vacuum degree reaches the limit, it will emit a lot of noise, called cavitation noise. When the vacuum degree is high, the pressure test blasting detector will open the valve to release the excessive gas, and the cavitation sound will disappear immediately. When the vacuum degree drops, the valve will be closed.

6. One of the important functions of circulating water is to cool the heat generated by the vacuum pump. When the water temperature of the circulating water exceeds 40 degrees, the vacuum degree will be reduced. Timely supplement or change the cold water to reduce the heat of the circulating water. The vacuum pump on the fence equipment uses iron oil barrel to hold the circulating water, and the water in the bucket should be more.